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fertilization and reverse osmosis h2o
Does anyone who uses an RO unit for their water put any amount of
untreated tap water back into the RO water for micronutrients? I've been using an RO unit for my orchids' watering needs for the last two years. I recently found part of a blog from a few years ago that stated anyone who uses RO water should add some (an amount wasn't specified) regular tap water back into it in order to supply micronutrients that the RO unit removes during the filtration process. I usually add a little less than 1/16th a teaspoon per gallon of the University of Michigan formulated fertilizer every time I water my plants (and the fertilizer container says it's formulated for RO water). Does that sound like it's enough to fulfill the nutrient needs of the majority of orchid genera without the need to add tap water back into the RO water, or should I still add some tap water? I thought I was doing my plants a favor a couple of years ago when I invested in an RO unit. However, since what I read indicated that RO water can be tricky to use since it takes out just about everything from the water and renders it more pure than rain water (meaning that the plants have nothing left in the form of nutrients to absorb from the RO water), I'm starting to wonder whether or not I've been starving my plants. |
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